分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海; 新鮮な水; 汽水性の 底生の漂泳性; 降流性の (Ref. 9258); 深さの範囲 0 - 3000 m (Ref. 86942). Subtropical; 18°S - 47°S, 140°E - 168°E
Southwest Pacific: east coast of Australia and New Zealand, extending north to New Caledonia. Museum records from Fiji and Tahiti are doubtful. Australian and New Zealand forms sometimes recognized as subspecies. Most easily confused with Anguilla obscura and the surest way of distinguishing them is to count the vertebrae. Reported from Western and American Samoa (Ref. 592).
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 130 cm TL オス/雌雄の選別がない; (Ref. 40637); 106.5 cm TL (female); common length : 45.0 cm TL オス/雌雄の選別がない; (Ref. 9258); common length :65 cm TL (female); 最大公表体重: 7.5 kg (Ref. 40637); 最大記録サイズ: 32 年 (Ref. 6390)
Occurs in streams, lakes and swamps. More likely inhabits slow flowing streams or still waters (Ref. 26509). Feeds on fishes, crustaceans, mollusks, worms, aquatic plants, and terrestrial and aquatic insects. This species does not breed outside its Pacific spawning ground. Migrates to the sea to breed (Ref. 9258). Maximum length for female eel taken from Ref. 6390. Migrating females in Lake Ellesmere (Canterbury, New Zealand) were reported to be in the range of 48.3 to 102.4 cm, larger than for males 33.8 to 55.4 cm (Ref. 44724). Despite its slimy appearance, its flesh is of excellent quality, considered a delicacy in many countries; meat suitable for smoking (Ref. 33839).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 商業; 水産養殖: 商業; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (参照
123201): 4.3 - 9.1, mean 5.3 °C (based on 57 cells).
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00068 (0.00054 - 0.00085), b=3.16 (3.11 - 3.21), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (参照
69278): 4.3 ±0.5 se; based on diet studies.
回復力 (参照
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (tm=8-30; Fec=3,000,000).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (78 of 100).
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